From: Yang Sheng <yang.sheng@intel.com>
Date: Thu, 25 Jan 2018 17:43:37 +0000 (+0800)
Subject: LU-10565 osd: use readdir while iterate is kabi_extend
X-Git-Tag: 2.10.58~5
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=7db38378aa07f7ce5fb79bc379271fd4218d95bd;p=fs%2Flustre-release.git

LU-10565 osd: use readdir while iterate is kabi_extend

Sometime iterate interface is not initialized in ldiskfs.
So we use readdir in such case.

Signed-off-by: Yang Sheng <yang.sheng@intel.com>
Change-Id: I43260a6d27003895b0ddd1bdf7b0539cc2ad64c5
Reviewed-on: https://review.whamcloud.com/31018
Tested-by: Jenkins
Reviewed-by: Nathaniel Clark <nathaniel.l.clark@intel.com>
Reviewed-by: Bob Glossman <bob.glossman@intel.com>
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lustre/autoconf/lustre-core.m4 b/lustre/autoconf/lustre-core.m4
index b8f4e45..6420f4a 100644
--- a/lustre/autoconf/lustre-core.m4
+++ b/lustre/autoconf/lustre-core.m4
@@ -1509,8 +1509,12 @@ LB_CHECK_COMPILE([if 'dir_context' exist],
 dir_context, [
 	#include <linux/fs.h>
 ],[
+#ifdef FMODE_KABI_ITERATE
+#error "back to use readdir in kabi_extand mode"
+#else
 	struct dir_context ctx;
 	ctx.pos = 0;
+#endif
 ],[
 	AC_DEFINE(HAVE_DIR_CONTEXT, 1,
 		[dir_context exist])